In the white paper titled "802.11ax: The Sixth Generation of WiFi", there seems to be an error in Table 1. The math on final result does not tie in. The reason is that "Time per OFDM symbol" column shows that Short Guard Interval (400 ns) is to be used for calculation, while the final result is using Long Gaurd interval (800 ns).

For example, the 1SS throughput is listed as 390 Mbps, whereas the calculation yields 433.33 Mbps as the throughput for 1SS.

Other values should be similarly corrected.